Barely 24 hours after Park In-bee captured the Olympic women's golf gold, Kim carded 67 to finish at 21-under-par 259, capping off his performance with a 13-foot birdie at the final hole at Sedgefield Country Club.

Kim used his textbook-perfect swing to card a course record second-round 60 and never looked back, knocking approach shots close to the hole to distance himself from the field with precise shotmaking rather than a hot putter.

He was so far ahead with nine holes left that the result was hardly in doubt, even after he made three bogeys in five holes from the 10th.

"I aggressively played. I already made top 125 (in tour rankings), feel confidence so I don't have any fear to attacking the pin," he told reporters about having already retained his tour card and qualified for the FedExCup.

"I never expect any course record. I'm very happy being the youngest winner this year."

Despite his tender age, Kim is not the youngest ever champion in Greensboro. That honor belongs to the late Seve Ballesteros, who was 20 when he won in 1978.

Ballesteros went on to win the British Open three months later, the first of five major championships for the Spaniard.

Kim's immediate ambitions are not quite so grandiose.

"My goal is winning one more time next two years," he said, perhaps being overly modest.

(Reporting by Andrew Both in Cary, North Carolina; Editing by Larry Fine)